CN115150027A

CN115150027A - Multi-link block confirmation method, device and storage medium

Info

Publication number: CN115150027A
Application number: CN202110338125.5A
Authority: CN
Inventors: 吴昊; 王鑫
Original assignee: Chengdu Jimi Technology Co Ltd
Current assignee: Chengdu Jimi Technology Co Ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2022-10-04
Anticipated expiration: 2041-03-30
Also published as: CN115150027B

Abstract

The invention discloses a method and a device for confirming a multi-link block and a storage medium. The method comprises the following steps: sending a BA request message, wherein the BA request message comprises parameters of BAR type and BAR information; and receiving a BA message, wherein the BA message comprises parameters BA type and BA information. The BAR type and the BA type comprise a Multi-Link mode Multi-Link, and corresponding BAR information and BA information are set; or a parameter Multi-Link-list indicating information requesting a plurality of links to be reported in one block acknowledgement is included in the BA request message and the BA message. The invention uses the method of multi-link block confirmation, and the block confirmation feedback is carried out on one link without sending the block confirmation message on each link on two or more links, thereby avoiding wrong judgment on the receiving state caused by asynchronous BA receiving, further avoiding wrong retransmission of data packets and avoiding waste of wireless resources.

Description

Multi-link block confirmation method, device and storage medium

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a method, an apparatus, and a storage medium for multi-link block acknowledgement.

Background

In the 802.11 system, an access device (AP STA) and a terminal device (Non-AP STA) are both internally deployed with a MAC layer and a PHY layer, wherein the main functions of the MAC layer include channel management, connection management, quality of service management, power control, time synchronization, and the like, and the main functions of the PHY layer include modulation, coding, transmission, and the like.

Both the MAC layer and the PHY layer conceptually include management entities referred to as a medium access layer management entity MLME (MAC sublayer management entity) and a physical layer management entity PLME (PHY sublayer management entity), respectively. These entities provide low-level management service interfaces through which low-level management functions can be invoked.

In order to provide correct MAC operation, each device (including Non-AP STA and AP STA) has a higher management entity, such as SME (device management entity), which represents a higher management entity above the MAC layer, is a layer-independent entity, and is located in a separate management plane.

The function of SME: typically, this entity is responsible for functions such as collecting layer-related state from various layer management entities (MLME and PLME), which similarly set layer-specific parameter values. SMEs typically perform such functions on behalf of a general system management entity. The layers interact with each other through defined primitives.

802.11be networks, also known as Extreme High Throughput (EHT) networks, are enhanced by a range of system features and a variety of mechanisms to achieve very High Throughput. As the use of Wireless Local Area Networks (WLANs) continues to grow, it becomes increasingly important to provide wireless data services in many environments, such as homes, businesses, and hot spots. In particular, video traffic will continue to be the dominant type of traffic in many WLAN deployments. With the advent of 4k and 8k video (uncompressed rate of 20 Gbps), the throughput requirements for these applications are constantly evolving. New high throughput, low latency applications such as virtual reality or augmented reality, gaming, remote offices, and cloud computing will proliferate (e.g., latency for real-time gaming is less than 5 milliseconds).

In view of the high throughput and stringent real-time latency requirements of these applications, users expect higher throughput, higher reliability, less latency and jitter, and higher power efficiency when supporting their applications over a WLAN. Users desire improved integration with Time Sensitive Networks (TSNs) to support applications on heterogeneous ethernet and wireless LANs. 802.11be networks aim to ensure the competitiveness of WLANs by further increasing overall throughput and reducing latency, while ensuring backward compatibility and coexistence with legacy technology standards. 802.11 compatible devices operating in the 2.4GHz,5GHz and 6GHz bands.

Disclosure of Invention

In an 802.11 network, in order to ensure the reliability of the network, each time a sender sends a data packet, a receiver needs to return an ACK message to the sender to tell the sender whether the data packet is correctly received. With the increase of network data rate, after a sender is allowed to send a plurality of data packets, a receiver feeds back the plurality of data packets, and a message fed back for the plurality of data packets is called a Block ACK, that is, a Block acknowledgement scheme. To use the block acknowledgement method between two terminals, a block acknowledgement protocol must be established between the two terminals.

In a multilink operation scenario, there are independent links between a multilink terminal device and a multilink access device, which is implemented according to the prior art, each link needs to perform an independent block acknowledgement protocol establishment process, and actually, for a multilink terminal, in addition to supporting different services that can be performed independently on different links, the multilink terminal can also support the same service that can be performed on different links, that is, data packets of the same TID (service identifier) can be supported to perform data transmission on multiple links, then one physical entity for receiving and sending, that is, only one main body for distributing data packets, and feeding back ACKs on two links respectively, the data packets need to be strictly divided and then distributed to each link for sending. In view of the above, embodiments of the present invention provide a method, an apparatus, and a storage medium for multi-link block acknowledgement.

In a first aspect, an embodiment of the present invention provides a method for multi-link block acknowledgement, where the method includes:

sending a BA request message, wherein the BA request message comprises parameters of a BAR type and a BAR information, the BAR type represents a block acknowledgement request type, the BAR information represents parameters corresponding to the block acknowledgement request type, the block acknowledgement request type comprises a Multi-Link mode Multi-Link, the BAR information corresponding to the Multi-Link comprises parameters of a BA starting sequence number and a Link ID, the BA starting sequence number represents a sequence number of a starting continuous data packet, and the Link ID represents a Link identifier needing to report a data packet receiving state;

and receiving a BA message, wherein the BA message comprises parameters BA type and BA information, the BA type represents a block acknowledgement type, the BA information represents a parameter corresponding to the block acknowledgement type, the block acknowledgement type comprises a Multi-Link mode, and the BA information corresponding to the Multi-Link comprises a serial number of a starting continuous data packet and an array for indicating the received data packet.

In a second aspect, an embodiment of the present invention provides a method for multi-link block acknowledgement, where the method includes:

sending a BA request message, wherein the BA request message comprises parameters of a BAR type, a BAR information and a Multi-Link-list, the BAR type represents a block acknowledgement request type, the BAR information represents a parameter corresponding to the block acknowledgement request type, and the Multi-Link-list represents information of a plurality of links requested to be reported in one block acknowledgement;

and receiving a BA message, wherein the BA message comprises parameters BA type, BA information and Multi-Link-list, the BA type represents the block acknowledgement type, and the BA information represents the parameter corresponding to the block acknowledgement type.

In a third aspect, an embodiment of the present invention provides a method for multi-link block acknowledgement, where the method includes:

receiving a BA request message, wherein the BA request message comprises parameters of a BAR type and a BAR information, the BAR type represents a block acknowledgement request type, the BAR information represents parameters corresponding to the block acknowledgement request type, the block acknowledgement request type comprises a Multi-Link mode Multi-Link, the BAR information corresponding to the Multi-Link comprises parameters of a BA starting sequence number and a Link ID, the BA starting sequence number represents a sequence number of a starting continuous data packet, and the Link ID represents a Link identifier which needs to report a data packet receiving state;

and sending a BA message, wherein the BA message comprises parameters BA type and BA information, the BA type represents a block acknowledgement type, the BA information represents a parameter corresponding to the block acknowledgement type, the block acknowledgement type comprises a Multi-Link mode Multi-Link, and the BA information corresponding to the Multi-Link comprises a serial number of a starting continuous data packet and an array for indicating the received data packet.

In a fourth aspect, an embodiment of the present invention provides a method for multi-link block acknowledgement, where the method includes:

receiving a BA request message, wherein the BA request message comprises parameters of a BAR type, a BAR information and a Multi-Link-list, the BAR type represents a block acknowledgement request type, the BAR information represents parameters corresponding to the block acknowledgement request type, and the Multi-Link-list represents information of a plurality of links requested to be reported in one block acknowledgement;

and sending a BA message, wherein the BA message comprises parameters BA type, BA information and Multi-Link-list, the BA type represents the block acknowledgement type, and the BA information represents the parameter corresponding to the block acknowledgement type.

In a fifth aspect, an embodiment of the present invention provides a multi-link block acknowledgement apparatus, where the apparatus includes:

the first initiator communication module is configured to send a BA request message, where the BA request message includes a parameter BAR type and a BAR information, where the BAR type indicates a block acknowledgement request type, the BAR information indicates a parameter corresponding to the block acknowledgement request type, the block acknowledgement request type includes a Multi-Link mode Multi-Link, and the BAR information corresponding to the Multi-Link includes a parameter BA starting sequence number and a Link ID, where the BA starting sequence number indicates a sequence number of a starting continuous data packet, and the Link ID indicates a Link identifier that needs to report a data packet receiving state;

and the second initiator communication module is configured to receive a BA message, where the BA message includes parameters BA type and BA information, where the BA type represents a block acknowledgement type, the BA information represents a parameter corresponding to the block acknowledgement type, the block acknowledgement type includes a Multi-Link mode Multi-Link, and the BA information corresponding to the Multi-Link includes a sequence number of a starting continuous packet and an array for indicating a received packet.

In a sixth aspect, an embodiment of the present invention provides a multi-link block acknowledgement apparatus, where the apparatus includes:

the first initiator communication module is used for sending a BA request message, wherein the BA request message comprises parameters of BAR type, BAR information and Multi-Link-list, the BAR type represents a block acknowledgement request type, the BAR information represents parameters corresponding to the block acknowledgement request type, and the Multi-Link-list represents information of multiple links requested to be reported in one block acknowledgement;

and the second initiator communication module is used for receiving a BA message, wherein the BA message comprises parameters BA type, BA information and Multi-Link-list, the BA type represents the block acknowledgement type, and the BA information represents the parameter corresponding to the block acknowledgement type.

In a seventh aspect, an embodiment of the present invention provides a multi-link block acknowledgement apparatus, where the apparatus includes:

a first receiver communication module, configured to receive a BA request message, where the BA request message includes a parameter BAR type and a BAR information, where the BAR type indicates a block acknowledgement request type, the BAR information indicates a parameter corresponding to the block acknowledgement request type, the block acknowledgement request type includes a Multi-Link mode Multi-Link, and the BAR information corresponding to the Multi-Link includes a parameter BA starting sequence number and a Link ID, where the BA starting sequence number indicates a sequence number of a starting continuous packet, and the Link ID indicates a Link identifier that needs to report a packet receiving state;

and the second receiver communication module is configured to send a BA message, where the BA message includes parameters BA type and BA information, where the BA type represents a block acknowledgement type, the BA information represents a parameter corresponding to the block acknowledgement type, the block acknowledgement type includes a Multi-Link mode Multi-Link, and the BA information corresponding to the Multi-Link includes a sequence number of a starting continuous data packet and an array for indicating a received data packet.

In an eighth aspect, an embodiment of the present invention provides a multi-link block acknowledgement apparatus, where the apparatus includes:

the first communication module of the receiving party is used for receiving a BA request message, wherein the BA request message comprises parameters including BAR type, BAR information and Multi-Link-list, the BAR type represents a block acknowledgement request type, the BAR information represents a parameter corresponding to the block acknowledgement request type, and the Multi-Link-list represents information of a plurality of links requested to be reported in one block acknowledgement;

and the second receiver communication module is configured to send a BA message, where the BA message includes parameters BA type, BA information and Multi-Link-list, where the BA type represents a block acknowledgement type, and the BA information represents a parameter corresponding to the block acknowledgement type.

In a ninth aspect, an embodiment of the present invention provides a multi-link block validation apparatus, which includes a processor and a memory, where the memory stores at least one instruction, at least one piece of program code, a set of codes, or a set of instructions, and the at least one instruction, at least one piece of program code, a set of codes, or a set of instructions is loaded and executed by the processor to implement the multi-link block validation method according to any one of the first to fourth aspects.

In a tenth aspect, an embodiment of the present invention provides a computer-readable storage medium, where at least one instruction, at least one program code, a code set, or a set of instructions is stored in the computer-readable storage medium, and the at least one instruction, the at least one program code, the code set, or the set of instructions is loaded and executed by a processor to implement the multi-link block acknowledgement method according to any one of the first to fourth aspects.

It should be noted that the apparatus according to the fifth aspect is configured to perform the method provided by the foregoing first aspect, the apparatus according to the sixth aspect is configured to perform the method provided by the foregoing second aspect, the apparatus according to the seventh aspect is configured to perform the method provided by the foregoing third aspect, the apparatus according to the eighth aspect is configured to perform the method provided by the foregoing fourth aspect, and the apparatus according to the ninth aspect and the readable storage medium according to the tenth aspect are configured to perform the method provided by any of the foregoing first aspect to the fourth aspect, so that the same beneficial effects as the method provided by any of the first aspect to the fourth aspect can be achieved, and therefore, the embodiments of the present invention are not described in detail again.

The invention supports a flexible feedback mode in a multilink scene, and by using a method of multilink block acknowledgement, two or more links do not need to send block acknowledgement messages on each link any more, and block acknowledgement feedback is carried out on one link, so that wrong judgment of a receiving state caused by asynchronous reception of block acknowledgement BA is avoided, a data packet is retransmitted mistakenly, and waste of wireless resources is avoided.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention. Moreover, while the present disclosure has been described in terms of one or more exemplary embodiments, it is to be understood that each aspect of the disclosure can be implemented as a separate entity, whether or not such embodiment is described in connection with its specific embodiments. The embodiments and features of the embodiments described below can be combined with each other without conflict.

In the embodiments of the present invention, words such as "exemplary", "for example", etc. are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term using examples is intended to present concepts in a concrete fashion.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein do not denote any order, quantity, or importance, but rather are used merely to distinguish one element from another, and the meanings of the corresponding terms may be the same or different. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

In the embodiment of the invention, the multilink equipment comprises a plurality of logic entities, each logic entity carries out data transmission through one link, and each logic entity comprises an independent data transceiver module. A conventional single-link device has only one logical entity and only one MAC address, while a multi-link device has one MAC address, and each logical entity belonging to the multi-link device has one MAC address, for example, if a multi-link device runs with 3 logical entities, there are 4 MAC addresses on the physical device, one is multi-link device, and each of the three logical entities has one MAC address.

In the embodiment of the present invention, a logical entity that continuously transmits a plurality of data packets is referred to as a transmitting STA, and a peer logical entity that receives data packets is referred to as a receiving STA. The continuous transmission means that after each data packet is transmitted, the next data packet is transmitted without waiting for receiving the ACK of the receiver.

In the embodiment of the present invention, a block acknowledgement mode in which data packets are shared on different links between multilink devices is referred to as multilink block acknowledgement, a block acknowledgement protocol established between multilink devices is referred to as a multilink block acknowledgement protocol, and a plurality of logical entities on the multilink devices share the same multilink block acknowledgement protocol, that is, only one multilink block acknowledgement protocol is established for a plurality of links.

In the embodiment of the invention, the method for confirming the multi-link block comprises the following contents:

1. the sender STA sends an ADDBA request message to the receiver STA requesting block acknowledgement operation.

2. The receiving STA sends an ADDBA response message to the sending STA to indicate to accept or reject the block confirmation operation; if the block acknowledgement operation is accepted, a block acknowledgement operation protocol is established between the sender STA and the receiver STA; otherwise, the block acknowledgement operation protocol is not established.

3. After the block acknowledgement operation protocol is established and the sending STA obtains the sending opportunity, the sending STA may continuously send a plurality of data packets to the receiving STA, and after the plurality of data packets are sent, send a block acknowledgement request BA request message to the receiving STA, where parameters included in the BA request message are shown in table 1.

TABLE 1

Parameter(s)	Description of the invention
		BAR type	Block acknowledgement request type
BAR information	Parameters corresponding to block acknowledgement request types

The BAR type and the corresponding parameter setting are shown in table 2.

TABLE 2

When the sending side STA belongs to the multilink device, the receiving side STA may be requested to report only the packet receiving state on the current Link, so that the BAR type may be set to compact, or the receiving side STA may be requested to report the packet receiving state on other links, so that the BAR type may be set to Multi-Link, and information of other links which need to be acquired is indicated in the BAR information.

When the BAR type is Multi-Link, examples of parameters contained in the BAR information are shown in Table 3.

TABLE 3

BAR information may contain one or more Link IDs. The Link ID may be a number, a character string, or a character string plus a number, or a Link information element composed of parameters shown in table 4 or table 5:

TABLE 4

TxSTAAddress	Rx STAAddress
		Address of sender STA	Address of receiver STA

TABLE 5

Non-AP STAAddress	AP STAAddress
		Address of terminal equipment logic entity	Address of access equipment logic entity connected with terminal equipment

In addition, link ID may be set to 0 or a specific value, indicating that the packet reception status of all links needs to be reported; or indicates that the packet reception status of all links acknowledged in the ADDBA response message needs to be reported.

4. After receiving the BA request message, the STA of the receiving party reports the receiving state of the data packet according to the type indicated by the BAR type and the sequence number information in the BAR information:

if the BAR type in the message indicates as Compressed or Multi-TID, determining the reported data packet receiving state according to the data packet currently and successfully received by the STA of the receiving party and the BA starting sequence number;

if the BAR type in the message indicates Multi-Link, reading Link ID in BAR information, determining a corresponding logic entity according to the Link ID, determining a reported data packet receiving state according to the successfully received data packet sequence number on the logic entity corresponding to all the Link ID and the BA starting sequence number in the BAR information, and setting the BA type indication as Multi-Link. For example, if the packet sequence number successfully received by the link 1 is 14,15,18,19,20, the packet sequence number successfully received by the link 2 is 11,12,21,22,23, and the received BA starting sequence number is 16, then 18,19,20, 21,22,23 are reported to be successfully received.

Illustratively, the method for determining the corresponding logical entity according to the Link ID includes: if the Link ID is a number, a character string or a character string plus a number, the corresponding logic entity can be confirmed by inquiring the local identification or address of the logic entity corresponding to the Link ID, if the Link ID is the Link information element, the corresponding logic entity is determined according to the value of the RX STAAddress, or the corresponding logic entity is determined by looking up the value of the Non-AP STAAddress or the AP STAAddress according to the attribute (Non-AP or AP) of the STA of the receiver.

5. The receiving STA sends the data packet reception status on all designated links to the sending STA by including the data packet reception status in a block acknowledgement BA message, which includes the parameters shown in table 6.

TABLE 6

Parameter(s)	Description of the invention
		BA type	Block acknowledgement type
BA information	Parameters corresponding to block acknowledgement type

Table 7 shows the BA type and the corresponding parameter setting.

TABLE 7

The babbitmap is an array, and by setting the array value to 0 or 1, together with the sequence number of the initial consecutive data packet, it can be analyzed which data packets are successfully received by the receiving STA.

Alternatively, when the BAR type in the BA request message indicates Multi-Link, the Multi-Link device to which the receiver STA belongs may transmit the BA message using a logical entity on any one of the Link or all links confirmed in the ADDBA response message, instead of only the receiver STA that is peer to the sender STA.

6. After receiving the BA message, the sender STA determines the data packet successfully received by the receiver STA according to the BA starting sequence number and the BA bitmap, compares the current sending window, and retransmits the data packet if the data packet unsuccessfully received by the receiver STA exists.

In another embodiment, in step 3 of the foregoing embodiment, after the block acknowledgement operation protocol is established and the sender STA obtains the sending opportunity, the sender STA may continuously send a plurality of data packets to the receiver STA, and after the plurality of data packets are sent, send a BA request message to the receiver STA, where examples of parameters included in the BA request message are shown in table 8.

TABLE 8

And when the BA request message does not contain a Multi-Link-list parameter, indicating the single-Link mode, otherwise, indicating the Multi-Link mode.

Table 9 shows examples of BAR type types and corresponding parameter settings.

TABLE 9

The Link ID may be a number, a character string, or a character string plus a number, or may be a Link information element composed of parameters shown in table 10 or table 11:

watch 10

TxSTAAddress	Rx STAAddress
		Address of transmitting party STA	Address of receiver STA

TABLE 11

In addition, the Multi-Link-list may be set to 0 or a specific value, indicating that the packet reception status of all links needs to be reported; or indicates that the packet reception status of all links acknowledged in the ADDBA response message needs to be reported.

In step 4 of the above embodiment, after receiving the BA request message, the receiving-side STA reports the packet receiving status according to the type indicated by the BAR type and the sequence number information in the BAR information:

and if the BA request message indicates a multilink mode, determining a corresponding logic entity according to the Link ID, and then determining the reported data packet receiving state according to the successfully received data packet sequence numbers and BAR information on the logic entities corresponding to all the Link IDs. For example, if the sequence number of the packet successfully received by the link 1 is 14,15,18,19,20, the sequence number of the packet successfully received by the link 2 is 11,12,21,22,23, and the sequence number of the initial continuous packet received is 16, then the successful reception is reported 18,19,20, 21,22,23;

otherwise, determining the reported data packet receiving state according to the data packet successfully received by the STA at the receiving party and the BAR information.

Exemplarily, the determining the corresponding logical entity according to the Link ID includes: if the Link ID is a number, a character string or a character string plus a number, the corresponding logical entity can be confirmed by inquiring the local identification or address of the logical entity corresponding to the Link ID, if the Link ID is the Link information element, the corresponding logical entity is determined according to the value of RX STAAddress, or the corresponding logical entity is determined by looking up the value of Non-AP STAAddress or AP STAAddress according to the attribute (Non-AP or AP) of the STA of the receiver.

In step 5 of the above embodiment, the receiving STA includes the data packet reception statuses on all designated links in a block acknowledgement BA message, and sends the BA message to the sending STA, where the parameters included in the BA message are shown in table 12.

TABLE 12

The BA type and the corresponding parameter setting are shown in table 13, for example.

Watch 13

Alternatively, when the BA request message indicates a multi-link mode, the multi-link device to which the receiver STA belongs may transmit the BA message using a logical entity on any one of the link or all links acknowledged in the ADDBA response message, instead of only the receiver STA peer to the sender STA.

Other contents of this embodiment are the same as those of the previous embodiment, and are not described again here. Compared with the previous embodiment, the embodiment can still select to use different BA types in the multi-link mode, and a more flexible combination is formed.

In an embodiment of the present invention, based on the same inventive concept as the above-described method for determining a multi-link block, an embodiment of the present invention further provides a device for determining a multi-link block, where the device includes:

the first initiator communication module is used for sending a BA request message, where the BA request message includes parameters BAR type and BAR information, where the BAR type represents a block acknowledgement request type, the BAR information represents parameters corresponding to the block acknowledgement request type, the block acknowledgement request type includes a Multi-Link mode Multi-Link, the BAR information corresponding to the Multi-Link includes parameters BA starting sequence number and Link ID, where the BA starting sequence number represents a sequence number of a starting continuous data packet, and the Link ID represents a Link identifier that needs to report a data packet receiving state;

Another multi-link block acknowledgement apparatus, the apparatus comprising:

and the second initiator communication module is configured to receive a BA message, where the BA message includes parameters BA type, BA information, and Multi-Link-list, where the BA type represents a block acknowledgement type, and the BA information represents a parameter corresponding to the block acknowledgement type.

Yet another multi-link block acknowledgement apparatus, the apparatus comprising:

and the second receiver communication module is used for sending a BA message, wherein the BA message comprises parameters BA type, BA information and Multi-Link-list, the BA type represents the block acknowledgement type, and the BA information represents the parameter corresponding to the block acknowledgement type.

In this embodiment of the present invention, based on the same inventive concept as that of the foregoing multi-link block confirmation method, an embodiment of the present invention further provides a multi-link block confirmation apparatus, where the apparatus includes a processor and a memory, where at least one instruction, at least one section of program code, a code set, or an instruction set is stored in the memory, and the at least one instruction, at least one section of program code, a code set, or an instruction set is loaded and executed by the processor, so as to implement the multi-link block confirmation method according to the foregoing embodiment.

Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where at least one instruction, at least one program code, a code set, or a set of instructions is stored in the computer-readable storage medium, and the at least one instruction, the at least one program code, the code set, or the set of instructions is loaded and executed by a processor to implement the multi-link block validation method according to the foregoing embodiment.

It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, some or all of the steps may be executed in parallel or executed sequentially, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and in actual implementation, there may be other divisions, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not implemented.

The modules described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more modules are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention or a part thereof, which essentially contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device or a terminal device, etc.) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: u disk, removable hard disk, ROM, RAM) magnetic or optical disk, or the like.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. The character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

The word "if" or "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A method for multi-link block acknowledgement, the method comprising:

sending a BA request message, wherein the BA request message comprises parameters of BAR type and BAR information, the BAR type represents a block acknowledgement request type, the BAR information represents parameters corresponding to the block acknowledgement request type, the block acknowledgement request type comprises a Multi-Link mode Multi-Link, the BAR information corresponding to the Multi-Link comprises parameters of BA starting sequence number and Link ID, the BA starting sequence number represents a serial number of a starting continuous data packet, and the Link ID represents a Link identifier which needs to report a data packet receiving state;

and receiving a BA message, wherein the BA message comprises parameters BA type and BA information, the BA type represents a block acknowledgement type, the BAinformation represents a parameter corresponding to the block acknowledgement type, the block acknowledgement type comprises a Multi-Link mode Multi-Link, and the BAinformation corresponding to the Multi-Link comprises a serial number of a starting continuous data packet and an array for indicating the received data packet.

2. The method of claim 1, wherein the Link ID is in one of the following formats: the Link information element comprises parameters TxSTAAddress and Rx STAAddress, or comprises parameters Non-AP STAAddress and AP STAAddress, txSTAAddress represents the address of a sender STA, rx STAAddress represents the address of a receiver STA, non-AP STAAddress represents the address of a terminal equipment logic entity, AP STAAddress represents the address of an access equipment logic entity, and when the Link ID is a preset value, the Link information element represents that the receiving state of data packets of all links needs to be reported, or represents that the receiving state of data packets of all links confirmed in an ADDBA response message needs to be reported.

3. A method for multi-link block acknowledgement, the method comprising:

4. The method according to claim 3, wherein Multi-Link-list is a predetermined value or contains more than two Link IDs, the Link ID represents a Link ID that needs to report a packet reception status, and the Link ID is one of the following formats: the Link information element comprises parameters TxSTAAddress and Rx STAAddress, or comprises parameters Non-AP STAAddress and AP STAAddress, txSTAAddress represents the address of a sender STA, rx STAAddress represents the address of a receiver STA, non-AP STAAddress represents the address of a terminal equipment logic entity, AP STAAddress represents the address of an access equipment logic entity, and Multi-Link-list represents the data packet receiving state of all links needing to be reported when the Multi-Link-list is a preset value, or represents the data packet receiving state of all links needing to be reported when all links confirmed in BA ADDaddress messages are required to be reported.

5. A method for multi-link block acknowledgement, the method comprising:

and sending a BA message, wherein the BA message comprises parameters BA type and BA information, the BA type represents a block acknowledgement type, the BAinformation represents a parameter corresponding to the block acknowledgement type, the block acknowledgement type comprises a Multi-Link mode Multi-Link, and the BAinformation corresponding to the Multi-Link comprises a serial number of a starting continuous data packet and an array for indicating the received data packet.

6. The method of claim 5, wherein the Link ID is in one of the following formats: the Link information element comprises parameters TxSTAAddress and Rx STAAddress, or comprises parameters Non-AP STAAddress and AP STAAddress, txSTAAddress represents the address of a sender STA, rx STAAddress represents the address of a receiver STA, non-AP STAAddress represents the address of a terminal equipment logic entity, AP STAAddress represents the address of an access equipment logic entity, and when the Link ID is a preset value, the Link information element represents that the receiving state of data packets of all links needs to be reported, or represents that the receiving state of data packets of all links confirmed in an ADDBA response message needs to be reported.

7. The method of claim 6, wherein after receiving a BA request message and before sending a BA message, the method further comprises:

if the BAR type in the BA request message indicates Multi-Link, reading the LinkID in the BAR information, determining the corresponding logic entity according to the LinkID, then determining the reported data packet receiving state according to the successfully received data packet sequence numbers on the logic entities corresponding to all the LinkID and the BA starting sequence number in the BARInformation, and setting the BA type indication as Multi-Link.

8. The method of claim 7, wherein the determining the corresponding logical entity according to the LinkID comprises:

if the Link ID is a number, a character string or a character string plus a number, the corresponding logic entity can be confirmed by inquiring the local identification or address of the logic entity corresponding to the Link ID; and if the Link ID is a Link information element, determining a corresponding logic entity according to the value of the RX STAAddress, or determining the corresponding logic entity according to the attribute of the receiver STA by checking the value of the Non-AP STAAddress or the AP STAAddress.

9. The method of claim 5, wherein after receiving the BA request message and before sending the BA message, the method further comprises:

when the BAR type in the BA request message indicates Multi-Link, one Link is selected among the links confirmed in the ADDBA response message or one Link is selected among all the links to transmit the BA message.

10. A method for multi-link block acknowledgement, the method comprising:

11. The method according to claim 10, wherein the Multi-Link-list comprises two or more Link IDs, wherein the Link IDs represent Link identifiers required to report the reception status of the data packets, and the Link IDs are in one of the following formats: the Link information element comprises parameters TxSTAAddress and Rx STAAddress, or comprises parameters Non-AP STAAddress and AP STAAddress, txSTAAddress represents the address of a sender STA, rx STAAddress represents the address of a receiver STA, non-AP STAAddress represents the address of a terminal equipment logic entity, AP STAAddress represents the address of an access equipment logic entity, and when the Link ID is a preset value, the Link information element represents that the receiving state of data packets of all links needs to be reported, or represents that the receiving state of data packets of all links confirmed in an ADDBA response message needs to be reported.

12. The method of claim 11, wherein after receiving the BA request message and before sending the BA message, the method further comprises:

and determining a corresponding logic entity according to the Link ID, and then determining the reported data packet receiving state according to the successfully received data packet sequence number and BARinformation on the logic entity corresponding to all the Link ID.

13. The method according to claim 12, wherein the determining the corresponding logical entity according to the LinkID comprises:

if the Link ID is a number, a character string or a character string plus a number, the corresponding logic entity can be confirmed by inquiring the local identification or address of the logic entity corresponding to the Link ID; and if the Link ID is a Link information element, determining a corresponding logic entity according to the value of the RX STAAddress, or determining the corresponding logic entity by looking up the value of the Non-AP STAAddress or the AP STAAddress according to the attribute of the receiving STA.

14. The method of claim 10, wherein after receiving a BA request message and before sending a BA message, the method further comprises:

one link is selected among the links confirmed in the ADDBA response message or one link is selected among all links to transmit the BA message.

15. A multi-link block acknowledgement apparatus, the apparatus comprising:

16. A multi-link block acknowledgement apparatus, the apparatus comprising:

the first initiator communication module is used for sending a BA request message, wherein the BA request message comprises parameters of BAR type, BAR information and Multi-Link-list, the BAR type represents a block acknowledgement request type, the BARInformation represents parameters corresponding to the block acknowledgement request type, and the Multi-Link-list represents information of multiple links requested to be reported in one block acknowledgement;

and the second initiator communication module is used for receiving a BA message, wherein the BA message comprises parameters of BA type, BAinformation and Multi-Link-list, the BA type represents the block acknowledgement type, and the BAinformation represents the parameter corresponding to the block acknowledgement type.

17. A multi-link block acknowledgement apparatus, the apparatus comprising:

a first receiver communication module, configured to receive a BA request message, where the BA request message includes a parameter BAR type and a BAR information, where the BAR type indicates a block acknowledgement request type, the BAR information indicates a parameter corresponding to the block acknowledgement request type, the block acknowledgement request type includes a Multi-Link mode Multi-Link, and the BAR information corresponding to the Multi-Link includes parameters BA starting sequence number and Link id, where the BA starting sequence number indicates a sequence number of a starting continuous packet, and the Link id indicates a Link identifier that needs to report a packet receiving state;

18. A multi-link block acknowledgement apparatus, the apparatus comprising:

the first communication module of the receiving party is used for receiving a BA request message, wherein the BA request message comprises parameters of BAR type, BAR information and Multi-Link-list, the BAR type represents a block acknowledgement request type, the BARInformation represents parameters corresponding to the block acknowledgement request type, and the Multi-Link-list represents information of a plurality of links requested to be reported in one block acknowledgement;

and the second receiver communication module is used for sending a BA message, wherein the BA message comprises parameters BA type, BAinformation and Multi-Link-list, the BA type represents the block acknowledgement type, and the BAinformation represents the parameter corresponding to the block acknowledgement type.

19. A multi-link block validation apparatus comprising a processor and a memory having at least one instruction, at least one piece of program code, a set of codes, or a set of instructions stored therein, which is loaded and executed by the processor to implement the multi-link block validation method of any one of claims 1-14.

20. A computer-readable storage medium having stored therein at least one instruction, at least one piece of program code, a set of codes, or a set of instructions, which is loaded and executed by a processor to implement the multi-link block validation method of any one of claims 1-14.